/Engine/Source/Runtime/UMG/Public/Blueprint/WidgetNavigation.h
Try to rename any explicit or custom bindings from an old to a new name. This method can be overridden to customize resolving rules.
virtual void TryToRenameBinding ( [FName](API\Runtime\Core\UObject\FName) OldName, [FName](API\Runtime\Core\UObject\FName) NewName )